RC框架结构楼梯震损后加固方法的试验研究及有限元分析  

Experimental research and finite element analysis on the strengthening method for seismic damaged staircases of RC frame structures

作　　者：尹保江[1] 肖疆[1] 程绍革[1] 赵向丽[1] 

机构地区：[1]中国建筑科学研究院工程抗震研究所,北京100013

出　　处：《建筑结构》2014年第5期17-20,共4页Building Structure

基　　金：住房和城乡建设部支持项目(2009-k2-17);中国建筑科学研究院基金项目(20080122330730006)

摘　　要：根据楼梯的破坏机理及破坏形态,提出了震损楼梯间的几种加固方法,对已破坏的RC框架楼梯模型进行加固。通过低周反复荷载试验及有限元分析研究了加固模型的抗震性能,试验研究及有限元分析结果验证了加固方法的有效性,加固方法同样适用于既有建筑楼梯。Several strengthening methods were proposed to strengthen a seismic damaged staircase model of RC lYame structure based on the failure mechanism and failure mode of staircases. The seismic behavior of the strengthened model was studied by the low-cyclic reversed loading test and finite element analysis. Results indicate that the method is valid and can be applied in tile seismic reinforcement of existing staircases of RC frame strueture.

关 键 词：框架结构 楼梯 低周反复荷载试验 有限元分析 加固方法 

分 类 号：TU375.4[建筑科学—结构工程]